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The Cost of Information Interventions
The effect sizes for information tend to be pretty small. That doesn't mean they're not cost effective, right? Because let's say you have an information intervention that moves people's behavior so that 4% more people do something,. If that's a cheap intervention, that could be hugely valuable if that 4% means a significant change in those people's lives. And that may cost almost nothing to provide. Like if you send a text message, it costs almost nothing. So it would distinguish between sort of effect sizes versus cost effective and I think that's an important distinction.